CN200939915Y

CN200939915Y - Bicycle frame having inversed for connecting rod system

Info

Publication number: CN200939915Y
Application number: CN 200620134750
Authority: CN
Inventors: 吕东峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-29
Filing date: 2006-08-29
Publication date: 2007-08-29
Anticipated expiration: 2016-08-29

Abstract

The utility model relates to a reverse direction four-connecting-rod system for the bicycle frame,The seat tube of the front bicycle body extends downward to the upper connecting rod and connects with the front side of the rear upper fork. The front side of the five-way tube on the bicycle body is connected with the rear lower fork. The shock eliminator is arranged between the front side of the rear front fork and the upper tube of the front bicycle body. Thus, the displacement track of the rear wheel shaft is close to the straight line which can effectively avoid the block caused by brake and the chain drag. When stepping the pedals, the force bearing shakes of the upper and lower connecting rods can be offset due to different movement direction, which will not be influenced by the gestures and stepping mode of the rider. The utility model can provide optimized shock elimination for the bicycle body.

Description

The bicycle rack of reverse four push and pull system of tool

Technical field

The utility model relates to a kind of bicycle rack design of tool incabloc function, refers to a kind of Shockproof type bicycle rack that produces best shock-absorbing usefulness with reverse four push and pull system effectively especially.

Background technology

In order to provide bicycle to possess the loss that preferable shock-absorbing usefulness and minimizing drive energy, the bicycle dealer development and Design Shockproof type bicycle rack design that goes out various types successively, wherein more representative design comprises: preceding turning point formula bicycle rack as shown in Figure 5, forward as shown in Figure 6 (length) four push and pull system bicycle racks, forward as shown in Figure 7 (weak point) four push and pull system bicycle racks, and reverse four push and pull system bicycle racks as shown in Figure 8.If yet with ride the appearance conversion, trample, chain is pullled, it is locked to brake and the usefulness of the existing Shockproof type bicycle rack structure of analysis and assessment usually such as rigidity, and many weak points are obviously still arranged, and can further be studied improvement again.

Preceding turning point formula bicycle rack as shown in Figure 5, it is the preceding lower ending pivot of back vehicle frame B to be tied in the following pipe of front vehicle frame A form preceding turning point, and is provided with Shock absorber C between forward and backward vehicle frame A, B.Such design, avoiding braking locked and chain the aspect such as is pullled and had good performance, but owing to bear all stressed with single turning point, therefore relatively poor aspect structural rigidity, and the reaction of trampling and riding the appearance conversion for the rider is too directly sharp, be easy to generate cause before, back vehicle frame A, the situation that B interferes with each other takes place, add that its rear axis position is to swing with arching trajectory forward, when appearance is ridden in back shock-absorbing start or rider's conversion, all can be because of the swing of back vehicle frame B, cause the rider trample the application of force understand some consumed in the compression or the stretching Shock absorber, cause the phenomenon of trampling waste of power, and can be because the distance of front vehicle frame A five-way pipe and rear axis position changes, producing the chain relaxation and step on problems such as sky or chain counterattack, obstruction drives the handling and safety of trampling the application of force.

The bicycle rack of forward as shown in Figure 6 (length) four push and pull system, it is to be linked to the preceding upper end of back vehicle frame B by the seat pipe of front vehicle frame A to stretch the boxed rod D that establishes up, be linked to the back hook of back vehicle frame B with the lower link E of stock frame pattern by the five-way pipe rear of front vehicle frame A, and between boxed rod D and front vehicle frame A, be provided with Shock absorber C, thick-line arrow symbolic representation in wherein graphic is when the shock-absorbing start of back, the swaying direction of upper and lower connecting rod D, E, the thin-line arrow symbolic representation when trampling, upper and lower connecting rod D, the stressed swaying direction of E.Such design, utilize the point of crossing of upper and lower connecting rod D, E to form virtual turning point (VirtualPivot Point, VPP), allow the turning point of back vehicle frame B produce preferable swinging track to reach, and avoiding braking locked and chain is pullled and had good performance, but because the length of its lower link E is long, cause the integral structure rigidity relatively poor, and when the shock-absorbing start of back, virtual turning point VPP is with downward backward arching trajectory swing, cause wobbling action aggravation, when trampling or rider's conversion when riding appearance, still can produce the problem of trampling waste of power.

The bicycle rack of forward as shown in Figure 7 (weak point) four push and pull system, it is to be linked to the preceding upper end of back vehicle frame B by the seat pipe of front vehicle frame A to stretch the boxed rod D that establishes up, five-way pipe front upper place by front vehicle frame A is linked to the preceding lower end of back vehicle frame B with the lower link E of quarter butt frame pattern, and is provided with Shock absorber C between upper and lower connecting rod D, E.Such design, utilize the mode that shortens lower link E, can partly solve the problem of forward four push and pull system aspect structural rigidity, but when the shock-absorbing start of back, virtual turning point VPP is with downward backward arching trajectory swing, cause wobbling action aggravation, when trampling or rider's conversion when riding appearance, still can produce the problem of trampling waste of power.

The bicycle rack of reverse four push and pull system as shown in Figure 8, it is to be linked to the preceding upper end of back vehicle frame B by the seat pipe of front vehicle frame A to stretch the boxed rod D that establishes down, five-way pipe rear by front vehicle frame A is linked to the preceding lower end of back vehicle frame B with the lower link E of quarter butt frame pattern, and is provided with Shock absorber C between the last pipe of boxed rod D and front vehicle frame A.Such design, when the rider tramples, in the utilization, lower link D, different and the design of repealing by implication of the stressed swaying direction of E, when the shock-absorbing start of back, virtual turning point VPP is with forward, near parallel arching trajectory swing, can ride appearance and the aspect such as trample in rider's conversion good performance is arranged, but because its rear axis position is to swing with arching trajectory backward, the problem of aspect such as take place that easily locked the and chain of brake is pullled, and be the lower link E design of quarter butt frame pattern, amplify the build-up tolerance of back vehicle frame B easily and rock problem, the performance aspect structural rigidity is bad.

For solving the not enough and restriction of existing various Shockproof type bicycle racks in the structure design, inventor's development and Design goes out a kind of bicycle rack that produces optimization shock-absorbing usefulness with reverse four push and pull system.

Summary of the invention

The purpose of this utility model is to provide the bicycle rack of reverse four push and pull system of a kind of tool, its mainly be by front vehicle frame the seat pipe with stretch down the boxed rod spare of establishing be linked to the back vehicle frame the Seat stay front end, and be linked to the Chain stay front end of back vehicle frame with the lower link spare of moderate length by the five-way pipe front upper place of front vehicle frame, cooperate to be connected with in the Shock absorber between the pipe on Seat stay front end and the front vehicle frame; The utility model can be when the rider tramples, in the utilization, different and the design of repealing by implication of the stressed swaying direction of lower link spare, when the shock-absorbing start of back, virtual turning point is the arching trajectory swing to make progress forward, riding appearance and the aspect such as trample in rider's conversion to have the prettyr good performance of bicycle rack than conventional counter four push and pull system, and allow the deformation trace of rear axis position near straight line, locked and the chain of avoiding braking such as pulls at the problem of aspect, can utilize simultaneously moderate length on, lower link spare promotes the single-piece structural rigidity, allows bicycle rack use reverse four push and pull system to produce optimized shock-absorbing usefulness effectively.

Based on aforementioned purpose, the technological means that the utility model used is to provide the bicycle rack of reverse four push and pull system of a kind of tool, and it comprises:

One front vehicle frame, be provided with on one the seat pipe, that preceding pipe, that pipe, is linked to pipe front end this on is linked to pipe rear end this on and be linked to this preceding following pipe of managing the rear end, and a five-way pipe that laterally is fixedly arranged on this time pipe rear end, the position in the top, front side of this five-way pipe corresponding to middle fluted disc is provided with a pivot block;

One can swing the back vehicle frame that kenel is linked to this front vehicle frame, is provided with the back hook that a Seat stay, a Chain stay, are fixedly arranged on this Seat stay and this Chain stay rear end, and a Connection Block that is fixedly arranged on this Chain stay front end; Wherein the front end of this Seat stay was crossed over this pipe by the both sides of this pipe, and go up in contiguous this of the front end of this Seat stay and this pipe that binding is provided with a boxed rod spare between the front tube face of pipe below, this boxed rod spare is with the kenel setting towards this pivot block rear, and in the front end of this Seat stay and should go up to link between the position, stage casing of pipe and be provided with a Shock absorber; Wherein the front end of this Connection Block is to stretch the rear side below that is set to this five-way pipe, and binding is provided with link member between this Connection Block front end and this pivot block;

Thus, when the vehicle frame start of back, be arching trajectory swing, and allow the deformation trace of rear axis position near straight line to make progress forward with the formed virtual turning point of the point of crossing of this upper and lower connecting rod.

Preferable, Shock absorber of the present utility model roughly is positioned at the outrigger shaft line position of Seat stay.

Preferable, boxed rod spare of the present utility model is to be connected with in two parallel side lever stage casing formed H shape bridge kenels by a cross bar one; Lower link spare is to be connected with in two arc side lever posterior end formed U-shaped bridge kenels by a transverse axis pipe one.

The bicycle rack of reverse four push and pull system of tool of the present utility model, the advantage and the effect that can obtain are as follows:

1. the utility model is used in when trampling, different and the design of repealing by implication of the stressed swaying direction of upper and lower link member, trampling the application of force and can being consumed of rider can be avoided effectively, and the influence that appearance is ridden in rider's conversion can not be subjected in effect Shock absorber and cause waste of power.

2. the utility model is in back shock-absorbing start process, the deformation trace of rear axis position is near straight line, can keep the distance of five-way pipe and rear axis position not change, locked and the chain of not only can avoiding braking such as pulls at the problem of aspect, and can solve existing Shockproof type bicycle rack and can cause the problem of stepping on sky or chain counterattack, effectively guarantee the handling and safety that drives because of chain generation relaxation.

3. the utility model utilizes moderate length and all is the upper and lower link member design of shaft-like pattern, can allow the bicycle rack of reverse four push and pull system of tool obtain good structural rigidity.

Description of drawings

Fig. 1: the three-dimensional structure diagram of the utility model preferred embodiment.

Fig. 2: the local structure figure of the utility model preferred embodiment.

Fig. 3: the planar structure layout circle of the utility model preferred embodiment.

Fig. 4: the back shock-absorbing illustrative view of the utility model preferred embodiment.

Fig. 5: the back shock-absorbing illustrative view of turning point formula bicycle rack before existing.

Fig. 6: the back shock-absorbing illustrative view of existing forward (length) four push and pull system bicycle racks.

Fig. 7: the back shock-absorbing illustrative view of existing forward (weak point) four push and pull system bicycle racks.

Fig. 8: the back shock-absorbing illustrative view of existing reverse four push and pull system bicycle racks.

Drawing reference numeral:

Pipe on 10 front vehicle frame 11

Pipe before 111 linkage frames 12

13 pipe 131 linkage frames

15 times pipes of 14 five-way pipes

16 pivot block

20 back vehicle frame 21 Seat stays

211 coupling ends, 212 hack levers

22 Chain stays, 23 back hooks

24 Connection Blocks, 241 pivot ears

25 strut bars, 26 boxed rod spares

261 side levers, 262,263 axostylus axostyles

27 lower link spares, 271 side levers

272 transverse axis pipes, 273,274 axostylus axostyles

30 Shock absorbers

Vehicle frame behind the A front vehicle frame B

C Shock absorber D boxed rod

The E lower link

The virtual turning point of VPP (Virtual Pivot Point)

The specific embodiment

The preferred embodiment of the bicycle rack of reverse four push and pull system of tool of the present utility model, as Fig. 1, Fig. 2, shown in Figure 3, this bicycle rack includes a front vehicle frame 10, and articulates the back vehicle frame 20 that is linked to front vehicle frame 10, and members such as Shock absorber 30 of being located between the forward and

backward vehicle frame

10,20;

This front vehicle frame 10 by one near horizontal kenel go up pipe 11, be linked to pipe 11 front ends for the preceding pipe 12, of bicycle front fork combination be linked to five-way pipe 14 and that pipe 11 rear ends laterally are fixedly arranged on seat pipe 13 bottoms for the seat pipe 13, of bicycle saddle cushion combination link preceding manage 12 and five-way pipe 14 between members such as following pipe 15 form;

The pipe 11 following side pipe faces in the position, stage casing of going up wherein are installed with one can be for the linkage frame 111 of Shock absorber 30 front end pivots knot, in the front tube face of seat pipe 13 near last pipe 11 belows, be installed with linkage frame 131, and in the position of top, five-way pipe 14 front sides corresponding to middle fluted disc (chainwheel), the outstanding pivot block 16 that is provided with of one;

This back vehicle frame 20 is to set firmly Connection Block 24, that the back hook 23, that is linked to Seat stay 21 and Chain stay 22 rear ends is fixedly arranged on Chain stay 22 front ends by a Seat stay 21, a Chain stay 22, to set firmly the strut bar 25, that is linked between Seat stay 21 leading portions and Chain stay 22 front ends and be linked to boxed rod spare 26 between aforementioned linkage frame 131 and Seat stay 21 front ends, and members such as lower link spare 27 that are linked between aforesaid pivoted seat 16 and Connection Block 24 front ends are formed;

Seat stay 21 front ends were wherein crossed over seat pipe 13 by the both sides of seat pipe 13 and were formed and keep supplying the coupling end 211 that link member 26 and Shock absorber 30 are pivoted and link, and managed Seat stay 21 leading portions at 13 rears and be horizontally set with a usefulness for brake stack-mounted hack lever 212 being positioned at seat; Aforesaid boxed rod spare 26 is to be connected with in two parallel side lever 261 stage casings formed H shape bridge structures by a cross bar one, cooperation is pivoted the upper end of H shape boxed rod spare 26 with an axostylus axostyle 262 and is linked to the linkage frame 131 of seat pipe 13, and cooperate with an axostylus axostyle 263 coupling end 211 that the lower end of H shape boxed rod spare 26 is pivoted and is linked to Seat stay 21, allow boxed rod spare 26 with kenel setting towards pivot block 16 rears;

Connection Block 24 wherein is fixedly arranged on the front end of Chain stay 22, is provided with a pair of pivot ear 241 that is set to five-way pipe 14 rear sides below of stretching in the front end of Connection Block 24; Aforesaid lower link spare 27 is to be connected with the formed U-shaped bridge structure in two arc side levers, 271 posterior ends by a transverse axis pipe 272 one, the pivot block 16 that cooperation is pivoted the front end of U-shaped lower link spare 27 to be linked to front vehicle frame 10 with an axostylus axostyle 273, and after between the two pivot ears 241 that transverse axis pipe 272 are embedded at Connection Block 24, with an axostylus axostyle 274 posterior end of U-shaped lower link spare 27 being pivoted is linked to the Connection Block 24 of back vehicle frame 20;

This Shock absorber 30 is with two ends the be pivoted linkage frame 111 that is linked to front vehicle frame 10 and the coupling end 211 of Seat stay 21, and roughly is positioned at the extension axis of Seat stay 21;

So, utilize aforesaid front vehicle frame 10, members such as back vehicle frame 20 and upper and

lower link member

26,27, group constitutes the bicycle rack as Fig. 1, reverse four push and pull system of tool shown in Figure 3.

Please referring to Fig. 1, shown in Figure 4, utilize reverse four push and pull system design of the present utility model, not only can allow the position of high turning point during the virtual turning point VPP of vehicle frame 20 displacements all remains on behind the bicycle, and Seat stay 21 direct compressions roughly are positioned at the Shock absorber 30 that Seat stay 21 extends axis, can allow bicycle rack the shock-absorbing actuating travel directly and steady and smooth; The utility model is in the shock-absorbing actuating travel of back, virtual turning point VPP is the arching trajectory swing to make progress forward, riding appearance and the aspect such as trample in rider's conversion to have the prettyr good performance of bicycle rack than conventional counter four push and pull system, and allow the deformation trace of rear axis position near straight line, can keep the five-way pipe 14 and the distance of rear axis position not to change, can avoid taking place problems such as brake is locked, chain is pullled and relax, guarantee the handling and safety that drives effectively;

Moreover, when the utility model is trampled in the rider, different and the application force of repealing by implication of the stressed swaying direction of upper and

lower link member

26,27, avoid trampling the application of force and can being consumed of rider effectively in effect Shock absorber 30 and cause waste of power, and can allow the shock-absorbing usefulness of bicycle rack can not be subjected to rider's conversion rides appearance and influences dark tool Practical Benefit.

Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.

Claims

1. the bicycle rack of reverse four push and pull system of tool, it comprises:

One front vehicle frame is provided with on one seat pipe, that preceding pipe, that pipe, is linked to pipe front end this on is linked to pipe rear end this on and is linked to the following pipe of managing the rear end before this, and one laterally is fixedly arranged on the five-way pipe that the rear end is managed in this time;

One can swing the back vehicle frame that kenel is linked to this front vehicle frame, is provided with the back hook that a Seat stay, a Chain stay, are fixedly arranged on this Seat stay and this Chain stay rear end, and a Connection Block that is fixedly arranged on this Chain stay front end; It is characterized in that:

This front vehicle frame position corresponding to middle fluted disc above the front side of this five-way pipe is provided with a pivot block;

The front end of this Seat stay was crossed over this pipe by the both sides of this pipe, and go up in contiguous this of the front end of this Seat stay and this pipe that binding is provided with a boxed rod spare between the front tube face of pipe below, this boxed rod spare is with the kenel setting towards this pivot block rear, and in the front end of this Seat stay and should go up to link between the position, stage casing of pipe and be provided with a Shock absorber;

The front end of this Connection Block is stretched the rear side below that is set to this five-way pipe, and binding is provided with link member between this Connection Block front end and this pivot block.

2. the bicycle rack of reverse four push and pull system of tool as claimed in claim 1 is characterized in that: described Shock absorber is positioned at the outrigger shaft line position of described Seat stay.

3. the bicycle rack of reverse four push and pull system of tool as claimed in claim 2 is characterized in that: the described pipe of going up is installed with a linkage frame for described Shock absorber binding in position, stage casing downside.

4. the bicycle rack of reverse four push and pull system of tool as claimed in claim 3 is characterized in that: described seat pipe is installed with a linkage frame for described boxed rod spare binding in the described front tube face of going up the pipe below of vicinity.

5. the bicycle rack of reverse four push and pull system of tool as claimed in claim 4, it is characterized in that: described Seat stay is horizontally set with a hack lever in the front-end position at described seat pipe rear, and binding is installed with a strut bar between the front end of this Seat stay leading portion and described Chain stay.

6. as the bicycle rack of reverse four push and pull system of each described tool of claim 1 to 5, it is characterized in that: described boxed rod spare is to be connected with in two parallel side lever stage casing formed H shape bridge kenels by a cross bar one.

7. the bicycle rack of reverse four push and pull system of tool as claimed in claim 6 is characterized in that: described lower link spare is to be connected with in two arc side lever posterior end formed U-shaped bridge kenels by a transverse axis pipe one.

8. the bicycle rack of reverse four push and pull system of tool as claimed in claim 7 is characterized in that: described Connection Block is provided with a pair of pivot ear that is set to described five-way pipe rear side below of stretching in front end, and described transverse axis pipe is embedded between this two pivots ear.